COSMOS 2251 DEB, 35023

Orbit data source: Space-Track

COSMOS 2251 DEB, 35023 is space debris in LEO originally from a launch on Wed, 16 Jun 1993 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). The debris from Iridium 33, an American commercial communications satellite, has been tracked extensively since its accidental collision with the defunct Russian satellite Cosmos 2251 in 2009. This event, occurring at high speed in low Earth orbit (LEO), generated thousands of pieces of space debris, significantly increasing the risk of further collisions. The Iridium 33 debris cloud has impacted space traffic management and orbital debris mitigation strategies, making it a subject of ongoing study in space situational awareness.

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https://www.satcat.com/sats-embedded/35023?theme=dark&initialShowStats=false

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Identifier

35023, 1993-036AGL

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1993-06-16 (33 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 COSMOS 2251 DEB
1 35023U 93036AGL 26038.28898566  .00025031  00000-0  21058-2 0  9994
2 35023  74.0358  98.3167 0028141 169.2319 307.6048 14.97858077891252

Epoch: 2026-02-07T06:56Z

TLE epoch observation values (Epoch: 2026-02-07T06:56:08.361Z)

Latitude

59.40513°

Longitude

8.10529°

Altitude

571.344 km

Speed

7.588 km/s

True Right ascension

16h 38m 13s

True Declination

59° 15' 01"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

16:53:29

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

590.627 km

Perigee altitude

551.516 km

Semi-major axis

6,949.209 km

Eccentricity

0.00281

Inclination

74.0358°

RAAN

98.3167°

Arg. of periapsis

169.2319°

True anomaly

307.34878°

Mean anomaly

307.6048°

Eccentric anomaly

307.47684°

Mean motion

3.74662 °/min

Orbital period

96.09 mins

BSTAR

0.0021058

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Other satellites on launch #36 in the year 1993 (1993-06-16 UTC)

COSMOS 2251 DEB, 39549 (Decayed)

COSMOS 2251 DEB, 33989 (Decayed)

COSMOS 2251 DEB, 37996

COSMOS 2251 DEB, 37973

COSMOS 2251 DEB, 35843 (Decayed)

COSMOS 2251 DEB, 33829 (Decayed)

COSMOS 2251 DEB, 40801 (Decayed)

COSMOS 2251 DEB, 35722 (Decayed)

COSMOS 2251 DEB, 35582

COSMOS 2251 DEB, 33804 (Decayed)

COSMOS 2251 DEB, 38206 (Decayed)

COSMOS 2251 DEB, 37507 (Decayed)

COSMOS 2251 DEB, 34405 (Decayed)

COSMOS 2251 DEB, 34423 (Decayed)

COSMOS 2251 DEB, 37273 (Decayed)

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COSMOS 2251 DEB Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
7 mins	2026-02-07 14:59:01.549Z	355.052° N	2026-02-07 15:02:01.549Z	50.258° ENE	36.179°	2026-02-07 15:06:01.549Z	142.572° SSE
6 mins	2026-02-08 05:00:01.549Z	190.673° SSW	2026-02-08 05:03:01.549Z	48.386° ENE	42.738°	2026-02-08 05:06:01.549Z	22.379° NNE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out COSMOS 2251 DEB, 35023 on other resources

View COSMOS 2251 DEB, 35023 on Heavens-Above

View COSMOS 2251 DEB, 35023 on Keep Track

View COSMOS 2251 DEB, 35023 on Celestrak

View COSMOS 2251 DEB, 35023 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

COSMOS 2251 DEB, 35023

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-02-07T06:56:08.361Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #36 in the year 1993 (1993-06-16 UTC)

COSMOS 2251 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 2251 DEB, 35023 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago